Photorealistic Sprite in a Crystal Cave

Photorealistic sprite in a crystal cave. A tiny humanoid with translucent iridescent wings sits on a faceted quartz shard. Skin pale with mossy green undertones, hair like spun sunlight. Wears a cloak of dried leaves and dew. The cave walls glitter with quartz and amethyst columns; light beams refract into rainbows, casting cool blue and violet hues onto a still, mirror-like pool. Ultra-detailed textures, realistic skin and wings, wet crystal surfaces, volumetric fog, cinematic lighting, 8k realism.